Cement-applying machine.



W. F. L-AUTENSCHLAGER. CEMENT APPLYING MACHINE.

APPLICATION 'FlLED AUG. 19, 1915.

Patented Apr. 24, 1917.v

2 SHEETS-SHEET I.

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W. F. LAUTENSCHLAGER'.

CEMENT APPLYING MACHINE.

APPLICATION FILED AUG.19. 191s.

Patented Apr. 24,1917.

2 SHEETS-SHEET 2.

WILLIAMF. LAUTENSCI-ILAGER, OF CINCINNATI, OHIO.

CEMENT-APPLYIN G MACHINE.

Specification of Letters Patent.

Patented Apr. 24, 1917.

Application filed August 19, 1915. Serial No. 46,268.

To all whom it may concern:

Be it known that I, WVILLIAM F. LAUTEN- soHLAeEn, a citizen of the United States, residing at Cincinnati, in thecounty of Hamilton and State ofOhio, have invented certain new and useful Improvements in Cement- Applying Machines, of which the following is a specification. I

My invention is an improvement upon the cement applying machine shown, described and claimed in my applicationfor Letters Patent of the United States, Serial N 0. 39,802, filed July 14th, 1915, andrelates particularly to the cement control device therein shown, described and claimed.

Cement applying machines "to which my improvement relates are applicable for providing the margins of flexible material, such as leather, cloth and fabrics of various kinds with a narrow band of cement in the manufacture of shoe-uppers, gloves, pocket-books and containers of various kinds. At times these margins are skiv'ed especially when the flexible material operated on is in the nature of shoe-uppers.

The cement employed in this art for the purpose specified has volatile ingredients, and is tacky or gummy at the time of its application; It usually contains a large proportion of rubber, and is usually known in the trade as rubber cement," the cement used in cementing certaincharacters of materials, for instance, oily leathers or glazed materials, further containing an oil-absorb ing ingredient, such as chalk or other earthy substance, forming a'thicker cement, known in the trade as white or pink cement, which for convenience will bereferred to as thick cement. I

hecementapplication in the machine exemplifiedinv my aforesaid: application for patent takes place by coacting movement between. the margin being cemented and the cement-applying part, exemplified as a movement of the margin lengthwise of the margin and a movement of the cement-ap plier cross-wise of the margin, the movement of the margin" being cross-wise of the cement-applier. The cement is thereby laid in a path which is the resultant of these two movements, namely oblique with relation to the margin- The oblique path of the re sultant movement between the margin and the cement-applier has the furthereiiect of la'ying'the cement upon the margin as a narrow band of recurrentridges and depressions.

The cement employed being tacky, gummy or. resilient, has a tendency to form strings, which "may at times'take the form of a film of cement, between the plication to the margin and the periphery of the cement-applier. The cement also has a tendency to form drops or small balls which are liable to drop upon the material, which is detrimental.

I have also found that where the movement of the edge of the margin at the feeding-out side of the cement-applier is toward the operator, for instance, when cementing convexly curved margins, the'strings have a tendency to pull the cement away from the extreme edge and thereby leave the extreme outer edge of the margin uncemented.

In order'to overcome theobjections stated, and to provide means whereby the cement strings aswell as the drops or'lumps of cement are controlled, and to insure the cement application to the extreme outer edge of the'margin being cemented,'and further to enhance the cleanliness of the margin and prevent loss of cement, I have provided the novel means hereinafter described and claimed.

The invention will be-further readily understood from the following description and claims, and from the drawings, ofwhich latter:' 7 r 1 Figure 1 is an end elevation of so much of a-cement applying machine as isnecessary to illustrate my invention. r

Fig. 2 is a front elevation of the same.

Fig. 3 is a rear elevationof the same.

Fig. 4 is a verticalaXiaL section of the same, taken on the line i'-i of Fig. 1.

, Fig. 5 is a bottom view detail of the same.

"Fig. 6 is a vertical cross-section on the line'66 of Fig. 2. t

Fig. 7 is a vertical cross-section on the line 77 of Fig. 2. I I f Fig; 8 is a perspective view oi" the cement applying means, showing the cement being applied to the margin. and viewed from the "feeding out side and away from the operator.

Fig. 9 is a perspective View of the same, viewed toward the operator and from the feeding-in side; and, I

"Fig. 10 is a side elevation, showing the cement'applioation upon the margin of a point of cement ap piece of material, the material being cut away proximate to the plane of the feeding out side of the cement-applier.

The cement applying instrumentalities may be mounted upon a suitable frame, for instance as shown in my aforesaid application, and the cement-applier rotated and the feeding of cement caused in manner as therein shown and described.

Instancing this arrangement, 21 repre sents the main frame, which may have a laterally and forwardly projecting arm 22 extending therefrom. A cement-pot 23 is fixed in a bearing 24 of the arm. A cementpassage 25 extends therefrom to a cementvalve 26 for controlling the flow of cement. 29is a cement-supplying roller at the lower end of the cement-passage 30 in the valve. The cement-supplying roller is provided with cement-supplying recesses 31, arranged to receive cement and feed the same to a cement-applier 32, exemplified as a rotating brush.

The cement supplying roller is instanced as rotating in the direction of the arrow (1. The cement-applying brush is instanced as rotating in the direction of the arrow 7). Means for rotating these devices may be instanced. as a shaft 35, rotated in suitable manner, as by means of a pulley 36, and having thereon a gear 37. The gear 37 meshes with a gear 38, fast on a shaft 39, journaled in a bearing 40 in the forward extension 41 of the arm 22. The gear 38 meshes with a gear 42 on a shaft 43, journaled in a bearing 44 of said forward extension. The cement-applier 32 is mounted about the shaft 43 in manner hereinafter explained.

The shaft 39 has a gear 46 fixed thereon, which meshes with a gear 47 fast on a shaft 48', journaled in bearings 49, and having the cement-supplying roller 29 fixed thereon.

The margin of the flexible material is arranged to move crosswise of the cementapplying brush, instanced in the present exemplification as accomplished by manual means, being moved past the cement-apply ing brush crosswise thereof by the hands of the operator, and guided upon a forwardly extending support 51, located at the feeding-in side of the rotary cement-applying brush, and by a gage 52 adjusted upon said support for increasing or decreasing the width of the margin presented to the rotary cement-applying brush during cement application. It is movable, for in stance, forward and back on the support 51 and fixed in place by a clamp-screw 53, which passes through a slot 54 in the support and has threaded connection 55 with the gage. The gage has an upper flaring finger 56 thereon. The margin of the material is arranged to be received in the recess 57 between the finger and support for guiding the same, this recess having a gradually widening mouth for readily receiving the edge of the margin.

The support may also be raised or lowered and held in adjusted positions, as by means of clamp screws 58 received through a slot 59 in the shank 60 of the support, and threaded in threaded apertures in the arm 22.

A cement-wiping finger 62 may be em ployed to coact with the flange at the feeding-in side of the brush, for wiping any cement there may be thereon toward the bristles of thebrush.

The brush is provided with annular rows- 65 of bristles, separated by rings 66 about a bushing 67. The bushing is arranged to be adjustably secured to a sleeve 68 by means of a set-screw 69. The sleeve is rotatively fixed to the shaft 43 by means of a pin 71 in the shaft received in an end slot 72 in the inner end of the sleeve. The outer end of the sleeve is spaced from the outer end of the shaft 43 for forming an annular recess 73 between the shaft and hub of the brush in line with the sleeve.

The material-supporting face of the support or horn is arranged to be adjusted up or down according to the thickness of the leather or material being cemented. The material 74 being cemented may be skived, as shown at 75. face of the support or horn approaches the axis of the rotating brush at its rear, there by insuring that intimate contact between the outer edge of the margin being cemented and. the rotary brush is maintained.

In operating the machine, in the present,

exemplification, the operator is seated in front of the cement-applying head, as viewed in Fig. 2, that is, facing the front of the machine marked f in Fig. 1. The

normal direction of feeding the material is indicated by the arrow 0 in Figs. 8 and 9, the side d of the rotary cement-applier being therefore the normal feeding-in side, and the side 6 of said part being the normal feeding-out side thereof.

The gage with its support is, located at the feeding-in side of the rotary cement-applying brush and its edge proximate thereto is preferably spaced from the bristles of the brush by a slight space 7 6, for permitting the material to be flexed about the periphery of the brush at its point of cement application, as indicated at 77, without undue flexure of the bristles of the brush, and for insuring intimate contact between the margin cemented and the periphery of the brush.

This space also permits the ready passage of cross-seams, when such are contained in the margin, as when cementing closed Vamps.

The degree of pressure of the margin of the material upon the periphery of the brush is readily regulated by the force applied by The material-supporting the hands in stretching the material between the hands at the point of cement application, and also by the direction aboveorbelow the plane ofv the cement-applying portion of the brush in which the feeding-out portion of the margin is held.

The feeding movement of the material may be accomplished by. manual manipulation or by mechanical feeding means. 3

The movement of the cement-a plier crosswise of the margin causes a stringing, as shown at 78, of the cement at the feedingout side of the brush, this stringing sometimes taking the form of a thin film of cement. a p

This stringing is especially noticeable when the cement-applier is a rotary cementapplying brush, which I have found best for cement application, as the pressure of the margin upon the bristles and the feeding of the margin lengthwise ofthe margin and crosswise of the rotating brush, causes lateral flexure of the bristles of-the brush at the point of cement-application, and a tendency of the cement to follow the feeding movement. of the margin, resulting in the stringing mentioned. In order to control said stringing of the cement, and also-to provide a supply of ce-v ment at the feeding-out side of thebrush, I-

provide the-cement-control device 81, which is shown in the form of axplate received about the axis of rotation of the brush. The plate the form shown is provided with an annular flange 82 atits middle portion which is received about the shaft 43 in the annular recess 73. The plate adjacent to the flange contacts thehub ofthe brush, as shown at 83, for preventing seeping of cement to the brush-shaft. It is held on the shaft by means of a screw 84 which has threaded connection with the end of the brush-shaft.

In order to prevent rotation of the plate with the shaft and brush, it is provided with a tail-piece 85, arranged to contact the cement-applying head, for limiting its rotative movement about the shaft in one direction, but permittin an oscillation of the plate about the sha t, if such should be desired, for instance, for cleaningpurposes.

The cement-control device is provided witha laterally sloping wall 88 at the side of the initial part of the cement-feeding portion of the brush, adjacent to the cementsupplying roller, forming a'clearance space 89 for the cement at the feeding-out side ofthe brush which tapers toward the brush. This clearance space permits ready wiping of the cement off the cement-supplying roller by the brush. r

This laterally sloping wall merges into a radially extending wall 90, which extends radially substantially to or beyond the peripheral line of the brush, in close proximity to the bristles of the brush, and in connection with said first-named wall directs the cement at the feeding-out side of the brush toward the ends of the bristles.

The peripheral edge of the cement-control device at that portion-thereof proximate to the normal cement-applying portion of the brush and in advance of the material-sup porting surface of the material-support, is located inwardly from the longitudinal projection of the periphery of the rotary cement-applying brush, as shown at 91, so that the bristles of the brush may project beyond said edge, and further form a ce1nent-applying portion 92 of the brush in advance of the material-support, against which portionsof the margin may be contacted for applying cement thereto if this is desired. This is applicable for instance if it is desired to present under portions of scams or pointed margins to the brush for cement application thereon, and for other purposes.

I The cement-control device is further provided at that portion thereof at the feedingo-ut side of the normal cement applying por-' tion of the periphery of the brush, that is, in substantial line with the material-supporting face of the material-support, with a laterally extending pocket 93, the wall 94 of which flares laterally outwardly away from the rotary I cement-applying brush, the

pocket having a rear rearwardly and in- I 'Wardly extending wall 96, shown in the form of a lip on the plate. The front end of [the pocket, that is the end presented toward the'incoming portion of the brush, is preferably open.

This pocket forms a space in which the bristles of the brush may have lateral flexure during cement application, and provides a space in which there may be a slight accumulation of cement, the wall of the space, however. preventing a lateral drawing away of the cement by the material and the movement of the bristles in the space preventing the accumulation of an excess of cement in the space. The rotation of the brush in this space prevents the formation of any lumps or drops of cement, or the dropping of cement out of the pocket.

The character of the cement employed, which is a tacky, gummy and adhesive substance, and the relative movement between the margin and the brush 'mentioned,has a tendency to cause stringing of the cement between the outer edge of the margin and the periphery of the brush, as seen by the strings 78. It is understood that the bristles of the brush are flexed duringcement application and moved past said outer edge in contact therewith. These strings of cement normally extend from the margin to the periphery of the brush and would normally follow the periphery of the brush in its rotation and cause the end of the brush and plate to be in time covered with cement,

periphery of the which would eventually drop in drops or lumps on the material, and be uncleanly.

In order to prevent this undesirable condition, I have provided the rearwardly and inwardly inclined wall 96, shown in the form of a lip, which forms a rear narrowing end 97 for the pocket 93. This rear narrowing end also slants upwardly and rearwardly toward the periphery of the brush. The wall extends to rear of the brush into the plane of the path of the brush for forming an extension of the pocket, opening upwardly, and so arranged that the brush in its rotation will carry with it any excess accumulation of cement in the pocket, and cause rolling of drops or lumps of cement in said pocket agains'tthe wall thereof for disintegratiiig said drops or lumps and causing the disintegrated cement to follow the periphery of the brush back to the in-feeding portion of the cement-supplying roller.

The lower edge 98 of the wall of the pocket slopes toward the outer edge of the margin being cemented, when in cementapplying position, and is arranged to contact the strings of cement extending from the margin, and lay them upon the outer edge 99 of the margin, where they are cut off by said lower edge, the cut oil brush-end portions of the strings following the periphery of the brush to the cement-supplying roller, and the cut off portions of the cement-strings at the outer edge of the margin being laid upon said outer edge, so as to insure cement application throughout the margin at the extreme outer edge thereof. The arrangement is especially useful when applying cement to convexly curved portions of margins, as indicated at 100, for causing the strings to lie across the outer edges thereof.

This arrangement of the parts and the action thereof upon the cement-strings is clearly shown in Figs. 9 and 10.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a machine for applying cement to the margin of flexible material, the combination of a rotary cement-applier and a gage for the margin of the flexible material, arranged for feeding movement of the margin crosswise of said rotary cement-applier and lengthwise of the margin, and a cementstring control at the feeding-out side of said rotary cement-applier, said cement-string control located proximate to the path of the edge of the margin guided by said gage for contact by said edge with said cementstring control.

2. In a cement applying machine for ap-- plying cement to the margin of flexible material, the combination of a rotary cementapplier and a gage for the outer edge of the margin of the flexible material, arranged for feeding movement of the margin cross-- wise of said rotary cement-applier and lengthwise of the margin and flexing movement of the periphery of the cement-applier across said margin and past said outer edge thereof, and a cement-string control at the feeding-out side of said rotary cement-applier, said cement-string control located proximate to the path of said outer edge guided by said gage for contact by said outer edge with said cementstring control, said cement-string control extending beyond said path.

3. In a machine for applying cement to the margin of flexible material, the combination of a rotary cement-applier, a gage for the outer edge of the margin of the flexible material located at the feeding-in side of said rotary cement-applier, and a cement-string control at the feeding-out side of said rotary cement-applier, said and cement-string control being in substantial line with each other in crossline with said rotary cement-applier.

4C. In a machine for applying cement to the margin of flexible material, the combination of a rotary cement-applier having a cement-applying periphery moving crosswise of the path of feeding movement, and a cement-string control proximate to the cement-applying portion of said periphery at the feedingout side of said rotary cement-applier and extending laterally into the plane of the feeding-out side of said cement-applier extending perpendicular to its axis of rotation.

5. In a machine for applying cement to the margin of flexible material, the combination of a rotary cement-applying brush having a cement-applying periphery, and a cement-string control proximate to the cement-applying portion of said periphery at the feeding-out side of said rotary cementapplying brush and extending laterally into the plane of the feeding-out side of said rotary cement-applying brush extending perpendicular to its axis of rotation, and forming a cement-receiving pocket in which the bristles of said brush have fiexure.

6. In a machine for applying cement to the margin of flexible material, the combination of a rotary cement-applying brush having a cement-applying periphery, and a part forming a cement-receiving pocket .at the side of the cement-applying portion of said periphery, said pocket having a narrowing end at that portion of said periphery moving outwardly from said pocket.

7. In a machine for applying cement to the margin of flexible material, the combination of a rotary cement-applying brush having a cementapplying periphery, and a wall sloping away from said brush toward the cement-applying portion of its periphcry and having a rear end sloping laterally toward said brush at that portion of said periphery receding from said cement-applying portion thereof.

8. In a machine for applying CGHIGIlt lJO the margin of flexible material effected by a movement of the margin lengthwise of the margin and a movement of the cementap'plier crosswise of the margin, a rotary cementapplying brush constituting said ceinent-applier having a cement-applying periphery, and a cement-guard at the cesaid pocket and a lip at said narrowing end extending laterally into that plane of said brush perpendicular to its axis of rotation and at that side of said brush at which said cement-receiving pocket is located. a

10. In a machine for applying cement to the margin of flexible material, the combination of a rotary cement applying brush having a cement-applying periphery, and a cement-retaining wall at the side of the cement-applying portion of said periphery extending laterally intothat plane of said brush which is perpendicular to its axis of rotation and at that side of the latter at which said cement-retaining wall is located, said wall sloping toward said brush and forming a rubbing wall for the cement moved by said brush.

Copies of thin patent may be obtained for five cents each, by addressing the 11. In a machine for applying cement to the margin of flexible -material, the combination of a rotary cement-applying brush having a cement-applying periphery and a gage for the outer edge of the margin of the material, arranged for lengthwise feeding of said margin crosswise of said brush,

and a part forming a pocket at the side of the cement-receiving portion of said periphery into which the bristles of said brush are flexed during feeding movement ocf said margin, the wall of said pocket having a cement-stringing laying edge extending ad acent to the periphery of the brush across the gin.

12. In a machine for applying cement to the margin of flexible material, the combiposition of the outer edge of said marnation of guiding means for the outer edge of said margin, a rotary cement-applying part, and a cement-string laying part extendingaeross the position of said edge of said margin when being guided by said guiding means, said guiding means and cement-string laying part being in substantial cross-line with that portion of said rotary cement-applying part contacting the margin during cement application, constructed and arranged whereby to feed said margin lengthwise of said margin across said guiding means, said rotary cement-applying part and said cement-string laying part and whereby to control'the angle of presentation ofsaid outer edge of said margin to said cement-string layingpart for selective con tact of said edge with said cement-string laying part.

In testimony whereof, I have hereunto signed my name in the presenc'eo'f two subscribing witnesses.

' i WILLIAM F. LAUTENSCHLAGER. Witnesses:

THERESA M. SILBER, CHARLES E. WEBER.

Commissioner of Patents,

Washington, D. 0. 

